Lactonic ketone
[机] 内酯
🧩 词语组成解析
a. [化]内酯酸的, 无水氢氧酸类的
ketone
['ki:toʊn]
n. 酮;
🗣️ 情景例句
and put on the new winter jacket we bought today.
也把我们今天买的冬季夹克穿上。
The path to glory is always rugged.
通向光荣的道路常常是坎坷不平的。
You're perfectly welcome to inspect the winning bid.
我们很欢迎你来查阅得标者。